#### I challenge you are not a genius

Page no : 2

Raja Panduranga CA, CS, LLB (Cheif Finance Officer) (581 Points)
Replied 11 January 2012

As a riddle, the answer is zero legs on the bus since the bus has wheels instead of legs.

But as a maths problem; It's not a tricked question -- just a straightforward maths problem

§ Let's say the whole situation simply :
- There are 7 girls.
- Each girl has 7 backpack
- Each backpack has 7 big cats
- Each big cat has 7 little small cats.
§ Question: How many legs are there in the bus?
§ Let's focus on each part of the question systematically, write down on a piece of paper if you have to, following my steps of chains.

1. Focus on the first girl first:
A B C D E F G
Girl A has 7 backpacks

2. Now focus on first backpack A1 :
A1 A2 A3 A4 A5 A6 A7
Backpack A1 has 7 big cats

3. Now focus on first big cat :
1 2 3 4 5 6 7

Ø Each big cats have 7 small cats (that's the end of the focus)
Systematically, 7 small cats has 28 legs (7 * 4) combined with the big cat that owns this 7 small cats.

Let's call this the "cat chain", so cat chain 1 has 32 legs altogether.
Ø So since there are 7 big cats
7 * 32 = 224 legs

Ø Therefore each backpack has 224 legs

Ø Finally, each girl has 7 * 224 = 1568 legs.

Lastly, since there are 7 girls, A to G, there are 7 * 1568 legs (per girl) = 10976 legs.

Now, since each girl also has 2 legs each;
SO, (7 * 2) + 10976 = 10990 legs altogether

Note: Disregarding bus driver, buses and etc…Only focus on the girl and their backpacks!

CA Ruskin B (Member) (2602 Points)
Replied 11 January 2012

 Originally posted by : Vishwas V Rao It was pretty easy got it in the 1st attempt. But guess the answer is wrong because you forgot 2 legs of the driver. Else mention it as a bus which is not moving :p

question is what it is. you are not supposed to add a driver. bus is stationary or not is not a matter of question. you could have add a conductor or helper also.

nice finding, mr. rao. (1 bonus point for you)

Neha Dhapola (Student) (305 Points)
Replied 11 January 2012

Nice one. Thanx for sharing.... Keep sharing

Sumit Shah (Sr. Manager Finance & Accounts)   (27 Points)
Replied 11 January 2012

Girls                                   7 * 2 = 14 legs

Big Cats        7*7*7 = 343 * 4 = 1372 legs

Small Cats  7*7*7*7 = 2401*4 = 9604 legs

Total legs = 14+1372+9604 = 10990 legs

Jayachandra Naidu (Accountant) (171 Points)
Replied 11 January 2012

I Did, the answer is 10990

suchit shah (Dy. Manager(Finance & Accounts))   (208 Points)
Replied 11 January 2012

i also got it ................. n if u are talking about a bus driver how can u forget a conductor............lol

yogesh (article) (133 Points)
Replied 11 January 2012

10990 legs

Charlie Kilo (Certified Psychopath) (62 Points)
Replied 11 January 2012

nice one!!

CA Ruskin B (Member) (2602 Points)
Replied 11 January 2012

/forum/some-logical-questions-test-your-brain-184083.asp

ALL THE BEST

Vinitha (CA Final;MCom) (602 Points)
Replied 11 January 2012

nice one... got d answer... was able 2 open d the 1st file itself  which u uploaded...anyways thanx 4 sharing...

Vinitha (CA Final;MCom) (602 Points)
Replied 11 January 2012

nice one... got d answer... was able 2 open d the 1st file itself  which u uploaded...anyways thanx 4 sharing...

CA Harshit Rastogi (Chartered Accountant) (722 Points)
Replied 11 January 2012

Its Nt typical....i hv opened it in 1st shot...

CA Ruskin B (Member) (2602 Points)
Replied 11 January 2012

...

thanks

Ankur Singhal (Audit Assistant) (97 Points)
Replied 11 January 2012

i opened the sheet

CA Ruskin B (Member) (2602 Points)
Replied 11 January 2012

Real Test Is This for the CA & CWA Community

A father, in his will, left his money to his children in the following manner:

• Rs.1000 to the first born and 1/10 of what then remains, then
• Rs. 2000 to the second born and 1/10 of what then remains, then
• Rs. 3000 to the third born and 1/10 of what then remains,
• and so on.

When this was done each child had the same amount.

How many children were there?

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